Feeding-machine.



c. E.'cHrnsTQr-HLl FEEn'mG MACHINE. APPLIGATIOI( FILED OCT- 3h ISIS.

Patented Mar. 12, 1918.

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FIEEDING MACHINE.

APPLICATION FILED 0CT3I|19I6 5 SHEETS-SHET 2.

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FEED'ING MACHINE.

APPLCATION FILED OCT-31| IBIS.

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'FEEDING MACHINE.

. APPLICATION FILED 0CT.3|. 1916. 1,258,744.

Patented Mar 12, 1918 5 SHEETS-SHEET 4 I @umh/coi" 4 4 130cm Il. W MW 44 9 .J

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Patente Mur. 12, 1918.

.'JA'RL E. CHRISTOPHEL, OF PEARL RIVER, NEW COMPANY, OF PEARL RIVER, NEWYORK,

YORK, ASSIGNOR T0 DEXTER FOLDER CORPORATION 0F NEW YORK.

FEEDING-MACHINE.

Specification of Letters Patent.

Patented Mar. 12, 1918.

Application led October 31, `1916. Serial No. 128,805.

To all whom t may concern:

Be it known that I, CARI. E. CHRISTOPHEL, a subject of the GermanEmperor, residing at Pearl River, county of Rockland, and State of NewYork, have invented certain new and useful Improvements in Feeding-Machincs, of which the following is a speciication.

rlhis invention relates to sheet-feeding machines and more especially tothat class of feeding 'machines which are peculiarly, serviceable forfeedinor sheets of cardboard or the like. The primary object of thisinve ition is to provide an improved device for separatingpsheets ofcardboard from a pile as they are being fed one b-y one from the pile.One of the objects of the present invention is to provide an improvedconstruction in whichthe several coperating parts are more closelyrelated to each other. lAnother object is to provide an improvedsheet-separating mechanism that will be simple, durable and eflicient.

Other and further objects will appear in the specification and bepointed out in the appended claims, reference being had to theaccompanying drawings which exemplify my invention in its preferredembodiment. In the drawings,

Figure 1 is a side elevation of sheet-separating mechanism, constructed.in accordance with the principles of the present invention.; partsbeing broken away and parts shown in section;

Fig. 2 is a similar' side elevation showing the parts in changedpositions.

Fig. 3 is a similar side elevation showing a further stage of theoperation;

Fig. l is a rear elevation of the mechau nisni correspondingto Fig; 1,the fixed support being shown inscction;

Fig. 5 is a top plan view of the same;

j Fig. 6 is a top plan view of the suction cylinder, on an enlargedscale, parts being shown in section; and

Fig. 7 is a fragmentary rear elevation of the foot or lower end of thesliding frame,

parts being broken away and parts shown 1n section.

Referrlnff more articularl t0 the draware connected collars kment of asleeve 24 which is pressed ings, the vembodiment or my invention showntherein, includes a fixed bracket 'or support l to which a guide isadjustably connected by means of a. stud or bolt 2. Said guide comprisesa block 3 provided with a rearwardly projecting lug 4 which pivotsonstud or bolt 2. Depending from the block 3 are spaced guide rods 5. towhich 6 which constitute stops. for limiting the downward movement of aslide or frame which. is rcciprocably mounted on the rods 5 andcomprises a block 7 which carries a forwardly presentedk bracket Sprovided with a laterally project ing depending foot 9 and an upwardlyvforwardly projecting bracket Iarm 10. As

shown best in Figs. 1 and 7, the 'foot 9 is provided with a pin orextension 11 which is adapted to rest on a pile of sheets when the slideor frame is lowered. Foi this purpose, the bottom surface of said footcomprises a facet 12 which in lowered position lies flat on the pile anda facet 1.3 which 1s angularly disposed thereto and against `which aportion of the top sheet is drawn in the manner to be hereinafterpointed out. `It will appear from Figs. 1 and 7 that foot 9 is providedwith an annular slot for circular-ly 'formed plate 14 which projectslaterally from the shank 15 of a cradle which includes a strap or band16 for mounting a; cylinder 17 provided at its lower end with. a sucker18. A screw 19 secures said strap or band around the cylinder. Securedto the top wall of foot 9, is the curved plate 2O of a bracket arm 21which engages the lateral face of the shank 1.5 and prevents the lateraldisplacement of the cylinder-'carrying cradle. A piston (not shown onthe drawings) is provided with a piston rod 22 which carries aV rigidabutment or collar 23 which limits the moveupon from above by a spring25 which surrounds the `rod 22 and is confined between the sleeve 24 andan abutment 26 which is adjustably connected to the rod 22. The sleeve24 is pivotally connected at 27 with one end of a rod or lever 28 whichhas its upper end pivotally connected at 29 with the swinging journalinga rearwardly is permitted by the cam` 40,

. rojects laterally from a of the pile.

end of. a link 30 which is pivoted at 31 upon the bracket 10. A fixedstop or pin 32 limits the downward movement of guide link 30. Said rodor lever is provided with a slot within which slides a pin 34 carried bya crank arm 35 which is lieyed to a cam shaft 36. Referring now to Figs.4 and 5, the cam shaft 36 has keyed thereto a bevel gear 37 which mesheswith a bevel4 gear B8 l-ke yed to a shaft 39 which receives its powerthrou rh universal connections which maintain tie power-transmissionwithout interfering with the reciprocating movements of the slide orframe 8. Keyed to the cam shaft 36`is a cam 40 over which runs a camroller 41 journaled in the outer end of a cam lever 42 which oscillatesabout a stud 43 but' has a portion thereof inclined forwai-'diy anddownwardly to adapt it to hook under and to support the edge or cornerof a sheet which has been lifted by an. upward movement of' the sucker18. Projecting from the slide or frame 8 is an armor bracket 45 whichsupports a blow pipe or nozzle 46 which may receive compressed air fromany suitable source.- In order tonimpart a `lifting movement to theclamping foot whenever such ay movement aspring 47 is connected at oneend to a pln 48 carried by the cam lever 42, the other end of saidspring being connected to a pin 49 which forwardly extending arm orbracket 50. The operation of my improved mechanism. may now be brieflyexplained as follows:

According to Fig. 1 of the drawings, cam 4() has justwpermitted theclamping to move upwardly, thus permitting the slide or frame 8 to fallon the guide rods 5 until the foot 11 rests upon the pile of sheets.

Spring 47 has also acted to elevate clamping foot 44. By means of theangular movement of slotted cam bar 28, the cylinder 17 has been movedinto an upriht" position with the sucker 18 pressed rclose y to the topsheet of the pile, the piston being depressed in cylinder 17'-,l The camshaft 36 rotates in an anti-clockwise direction,'tl'n1s movin the pistonrupwardly in the cylinder 17 an causing the sucker 1.8 to grip the topsheet As the upward movement of the lpiston goes on, the cylinderristilted to the left on the foot l1 asa pivot until it assumes theposition shdwn in Figs. 2 and 3. lam 40 now begins toact upon cam lever42, thus forcing the clamping foot 44 ydown on to the pile andeventually causing. said slide..

orV frame 8 to be move(v upwar ly ontY ide rods 5 andliftini the foot 11fro t e pile, thus releasing t e top sheet as soon as the piston beginsto move downwardly to break the action of sucker 18. The tiltingmovement of cylinder 17 haslserved to p foot 44 ered f a sheet-engaginginstrumentality recipro-` cable toward and away `from a pile of sheets,a foot clamp movably lconnected to said sheet-engaging 1nstrumentality,Aand means lfor moving said. :foot clamp down'on to saiffiY pile, themovement of said foot clamp beting adapted to reciprocate saidsheet-engaging instrumentality.

2; 'In a sheet-feeding machine, a reciproc'able frame, a sheet-grippinginstrumental.-

ity movable on said frame, means for movin g said' l frame into and outof engagement wlth said pile, and :means for moving said sheet-grippinginstrumentality on. said Aframe to raise a portion of the top sheet,

said means for moving the frame inclieiding a clamp foot `movablymounted on saidv frame and adapted by its engagement with the pile tolift said `frame therefrom.

. 3. In a machine of the character described,

a reciprocable frame, means including a `clamp-ing foot for raising andlowering; lsaid frame, sheet-gripping means movablj,r mounted on saidframe, and means for op-` erating said sheet-gripping means to adapt itto grip a sheet near one extreme "of :its movement relatively to saidframe and to release said sheet near the other extreme of its movement.

4. In a machine of the character described, a reciprocable frame, meansincluding a clamping foot for raising and lowering` said frame,sheet-gripping means rno'vablv mounted on said frame, and means foroperating said sheet-gripping means to adapt it to grip `a sheet nearonefextreme of its movement relatively' to said ,frame and to releasesaid sheet near the other extreme of .its movement, said sheet-grippingmeans being oscillatableabout a portion of said reciprocable frame whichrests upon the top sheet of a pile when said frame is in lowosition.

5. n a machine of the character described, 'a reciprocable frame, meansincluding a clamping foot for raislng and lowering said frame,sheetripping means movably mounted on said rame, and means foroperatingsaid sheet-gripping 'means to adapt fitto grip a sheet near oneextreme el? its movement relatively to said frame and 'to release saidsheet near the other extreme of its movement, said sheet-gripping means`1ncllldng a cylinder pivotally connected` to lit said frame, a suckercarried b v said cylindei'. a piston niovalile in said c vlinder, andmeans for movin;r said piston in `said cylinder to sucw'i-ssivcllv makeand break the snct-ion therein.

6. In a machine of the character described, a guide, a slidereciprocalily mounted on said `guide and provided with n foot adapted torest upon a pile of sheets, ai sheetgripping device oseillatalilymounted on said slide, land means for oscillating said sheet-grippingdevice and operating said device to alternately grip and release asheet, said sheet-gripping device comprising a suction. cylinderpivotally mounted on said slidel and a piston reciprocable in saidcylinder and connected up with said oscillating means.

7. 1n n machine of the character-described, a guide, a slidereciprocably mounted on -said guide and provided with afoot adaptlvd torest upon n iile cfvsheets, a sheet-grip- 1 ping Ileviccoscilatablymoiinted on said iniinte'd on 4-said slideg'fagiistonrecprocable Iin'said cylinder,'afrtary shaft journalediii.. jsaid slide,and meansconnecting said shaft -land -said piston for-.reciprocatingsaid pis- .sli de, and means foi-'oscillating said'sheet- 2.5..

'to alteri'iately grip-and .releasel a shee-gllsaid 'sheet-grippingdevice'ncomprising- 'a suction 'gripping device sind operating saiddevice funds-ri pivoniiymounted on Isaid-laide raeaesc reciprocable`slide "i a ton: and oscillating said cylinder.

In a Adevice of thecharacter described,Y

a reciprocablc slide, ii

cylinder pivotally mounted on said slide, a. piston. reciprocable insaid cylinder, a rotary shaft journaled in' said slide, and meansconnecting'said shaft and 'said piston for ,reciprocating said pistonand oscillating said cylinder, said connecting means including a linkconnected to said piston' and a crank arin keyed to said shaft andhaving a pin and slot connectionl with said link.

10. In a. machine of the character described,a,reciprccable slide, asuction cyl-i inde'r pvotallymounted on said slide, a pistonrecipiocable in said cylinder, said piston being provided with n pistonrod, a shaft journaled in saidslide, aA crank arzn keyed t `said Shaft,n slotted link oscillatebly connected to said piston rod and slidablyconnected to said cranlc. :ii-ni, and means adapted to liv operated bysaid shaft for periodicallyr raising said slide.

11. In a machine o1" the character dcscribed. a reciprocable Slide, asuction cylinder pivotally mounted on said slide, a' piston reciprocablein Said cylinder, Said piston being provided with a piston rod, a shafti(.iurnaled `in said slide, a crank arm keyed in said shaft, a slottedlink oscillatably connected to said piston rod-and slidnbly connected toSaid crank arm. :ind means adapted to lie operated liv said .-luift forperiodically raising,r said slide. said periodicalli` operated meansincluding a lever pvotally mounted on said slide and provided with aclamping foot movablel into and out of engagement with a pile of sheets.

l2. In a niacliine of the character described, a reciprocable slide, asuction cylinder pivotally mounted on said slide, a piston reciprocablein said cylinder, said piston being provided with a piston rod, a shaftjournaled in said slide, a crank arm keyed to said shaft', a slottedlink oscillatably connected to Said piston rod and slidably connected tosaid crank arm, and means adapted to be operated by Said sliftiorperiodically raising 'said slide, said periodically Aoperated meansfincludin .ai 'lever pivot-ally mounted on-said slide, an` i'prvided witha clamping. foot-movable 'into and out of en gerneiit: `iigitghV af4p'ile'f'o'f' sheets, said clamping foot havin fa hooked? lower end 'adat- Vnected todsaid piston'rod and Slidably connected tosaid crank arm,and means adapted to be operated by Said shaft for periodicallyraising'said slide, and a'blast p1 e nozzle mounted on said slide and suita ly arranged to introduce a blanket of air under the edge ofa sheetwhich has been raised by said suction cylinder. f

1.4. In a' machine of the character described, a 'reciprocable slideprovided with a depending foot adapting said slide to rest on a pile ofsheets, a suction cylinder oscillatable on said foot, means forevaciiating said suction cylinder toadapt it to griptbe top sheet o nSaid pile, and means for simultaneously oscillating-said suctioncylinder to lift aportion of the top=sl1eet. Y,

15. In a machine o f the character described, a reciprocable sliderovded with a depending foot adapting said slide to rest on a pile ofsheets, a snc ion cylinder oscillatable on said foot, means forevacuating said suction c vlinder to :idapt it to grip the top sheet onsaid pile, and means for siinultnneonsly oscillating said suctioncylinder to lift a portion of the to sheet, said slide being providedwith a clamping foot peon, and ada ted to rest on a pileof sheets,producing means oscillatable on saidA suctionslide into position to thetop sheet of said pile and out of sai position to lift 10 a portion ofsa-ld sheet, and means movable y .on said slide into position beneaththe lifted portion of said top sheet and -adapted to lift seid slidefrom theV pile.

CARL OHRISTPHEL.

